Improved diaphragm fluid-meter



PATENT GEEICE.

L. HAVES, OF VORCESTER, MASSACHUSETTS.

HVIPROVED DIAPHRAGIV FLUID-METER.

Specification forming part of' Letters Patent No. l/LGQQ, dated April 15, ISG.

To @ZZ whom, it may concern:

Be it known that I, It. L. HAWEs, of Wo reester, in the county of Vorcester and State of Massachusetts, have invented certain new and useful Improvements in XVater Meters, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specin'cation, in which-d Figure 1 is a plan, a portion of the top case being removed to show the parts within; Fig. 2, a front view of the same; Fig. 3, a vertical section upon the line A A of Fig. I; Fig. 4, a vertical section upon the line X X of Fig. l; Fig. 5, a vertical section upon the line Z Z of Fig. 4.

In the water-meters heretofore contrived, in which an indiarubber or other elastic diaphragm is employed, the register or counting apparatus is actuated by means of attachments made directly to the diaphragm, by which construction and arrangement the diaphragm is subjected to strain and wear ,which causes its speedy destruction.

Io obviate this difficulty is the object vof my present invention, which consists in the use of a diaphragm or sack of india-rubber or other flexible water-proof material of a capacity greater than that of the portion of the meter in which it operates, this sack as it lls with water and expands being allowed to press against and give motion to a disk to which the registering apparatus is connected.

To enable others skilled in the art to understand my invention, I will proceed to describe the manner in which I have carried it out.

In the accompanying drawings, B is the case of the meter, the parts of which are united by the flanges C, between which are conti ned the edges of the measuring diaphragm or sack D. This sack is of a capacity slightly exceeding that of onehalf of the interior chamber of the meter, and as it expands by the influx of the water it presses against one or other of the disks E E2. rIhe pressure of the water is thus transferred to these disks, and the motion thus imparted to them is transmitted, by means of the rods F, which pass through the stung-boxes G, to the exterior of the meter, where they may be connected \Vhen in the position represented in Figs. I,

2, and 3, the water passes from the cock by the passage K to the right hand of the meter and upon one side of the diaphragm, the way being now opened through the passage L to the cock, and thence by the eduction-pipe M the water upon the other side of the diaphragm passes off and thelatter is forced over into the opposite half of the meter until it presses against the other disk, E2, which it now moves in the direction of the arrow, Fig. 1, until the cock is again changed and the plug or partition within the same is thrown into the position shown in Fig. 3, when the water enters the meter by the passage L and leaves it by the opposite passage, K.

It now remains to show the manner in which the cock is operated to reverse the flow of the water.

The rods F are connected together by a yoke, O, of the form represented in the drawings. To this yoke is attached the rack-bar l?, which engages with a toothed sector, Q, that vibra-tes around a pin,f, projecting from the case of the meter.

R is a tumbling-bob pivoted at fand having two projecting arms, g and 7L, which alternately, as the ball `falls upon one side and the other, strike the arm m, secured to the plug of the cock, by which the latter is thrown into the two positions seen in Fig. 3.

a and b are teeth upon the sector Q, which alternately engage with the pin d, projecting from the tumbling-bob, and thus the latter is thrown from one side to the other, and the cock is operated as before explained.

It is evident that the above-described meter gives a positive and unvarying measure, while the diaphragm, being subjected to no strain, and having no attachments to the moving parts, is not exposed to wear or rupture. as has heretofore been the case in meters of this character.

rIhe disks E El may be made of linely-perforated sheet metal or of wire-gauze, the apertures through the same being of a size that The elastic diaphragm D, so cnstiueted and 'shall not permit the protrusion of the indiaarranged as to operate without attachments rl'ibber diaphragm. to the moving parts and Without being sub- The throw of the tumblinghob is limited jected to strain, as set forth. by the pins s, projecting from the case of the I R. L. HAWES. meter.

What I claim as my invention7 and desire to secure by Letters Patent, is-

Vitnesses:

HORATIO PHELPS, T. W. HAMMOND. 

